Home / 103,572.20-155,358.30-102,535.40

Finding the Fourth Proportional to 103,572.20, 155,358.30 and 102,535.40

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Solution

The fourth proportional to 103,572.20, 155,358.30 and 102,535.40 is: 153,803.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,572.20 : 155,358.30 = 102,535.40 : x
  2. Step 2: Convert to fraction form
    103,572.20/155,358.30 = 102,535.40/x
  3. Step 3: Cross multiply
    103,572.20x = 155,358.30 × 102,535.40
  4. Step 4: Simplify right side
    103,572.20x = 15,929,725,433.82
  5. Step 5: Solve for x
    x = 15,929,725,433.82/103,572.20
  6. Step 6: Final answer
    x = 153,803.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.